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Malformed input may lead to crashes (with a buffer overflow or other memory corruption) or other unspecified behaviors. This crosses a privilege boundary in, for example, certain web-hosting environments in which a Control Panel allows an unprivileged user account to create subaccounts.","status":"published","published":"2017-08-04T09:29:00.187Z","modified":"2026-10-20T13:19:01.342983601Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:04.159616Z"},{"id":"DEBIAN-CVE-2017-12424","description":"In shadow before 4.5, the newusers tool could be made to manipulate internal data structures in ways unintended by the authors. Malformed input may lead to crashes (with a buffer overflow or other memory corruption) or other unspecified behaviors. This crosses a privilege boundary in, for example, certain web-hosting environments in which a Control Panel allows an unprivileged user account to create subaccounts.","status":"published","published":"2017-08-04T09:29:00.187Z","modified":"2026-09-01T20:03:42.082311206Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:45:28.50097Z"},{"id":"UBUNTU-CVE-2017-12424","description":"In shadow before 4.5, the newusers tool could be made to manipulate internal data structures in ways unintended by the authors. Malformed input may lead to crashes (with a buffer overflow or other memory corruption) or other unspecified behaviors. This crosses a privilege boundary in, for example, certain web-hosting environments in which a Control Panel allows an unprivileged user account to create subaccounts.","status":"published","published":"2017-08-04T09:29:00Z","modified":"2026-02-04T02:39:33.153116Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"},{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:54:14.122973Z"},{"id":"CLSA-2022-1643637259","title":"Fix CVE(s): CVE-2017-12424, CVE-2018-7169","description":"\n   * SECURITY UPDATE: Crash or buffer overflow\n     - debian/patches/CVE-2017-12424.patch: fix buffer overflow if\n       NULL line is present in db in lib/commonio.c.\n     - CVE-2017-12424\n   * SECURITY UPDATE: Access to privileged information\n     - debian/patches/CVE-2018-7169.patch: newgidmap:\n       enforce setgroups=deny if self-mapping a group in\n       src/newgidmap.c.\n     - CVE-2018-7169","status":"published","published":"2022-01-31T13:54:19Z","modified":"2026-06-04T10:04:03.253692Z","updated_at":"2026-11-02T15:43:39.801198Z"},{"id":"CLSA-2026-1777945742","title":"shadow-utils: Fix of CVE-2017-12424","description":"- CVE-2017-12424: fix heap buffer overflow in commonio_sort when an entry has a NULL line","status":"published","published":"2026-05-05T01:49:07Z","modified":"2026-06-01T00:33:25.947654729Z","updated_at":"2026-11-02T15:43:44.737408Z"},{"id":"CLSA-2026-1777947090","title":"shadow-utils: Fix of CVE-2017-12424","description":"- CVE-2017-12424: fix heap buffer overflow in commonio_sort when an entry has a NULL line","status":"published","published":"2026-05-05T21:16:20Z","modified":"2026-06-01T00:32:44.299700459Z","updated_at":"2026-11-02T15:43:44.737408Z"},{"id":"DLA-2596-1","title":"shadow - security update","status":"published","published":"2021-03-17T00:00:00Z","modified":"2026-03-09T01:22:13.826938Z","updated_at":"2026-11-02T15:46:10.712745Z"},{"id":"MGASA-2017-0465","title":"Updated shadow-utils packages fix security vulnerability","description":"It was found that shadow-utils had a buffer overflow where if a buffer was\nleft NULL for a cycle the next cycle would happily write past the entries\nbuffer (CVE-2017-12424).\n","status":"published","published":"2017-12-22T10:31:08Z","modified":"2026-04-16T06:24:31.542558829Z","updated_at":"2026-11-02T15:49:40.442238Z"},{"id":"SUSE-SU-2017:2947-1","title":"Security update for shadow","description":"This update for shadow fixes several issues.\n\nThis security issue was fixed:\n\n- CVE-2017-12424: The newusers tool could have been forced to manipulate\n  internal data structures in ways unintended by the authors. Malformed input may\n  have lead to crashes (with a buffer overflow or other memory corruption) or\n  other unspecified behaviors (bsc#1052261).\n\nThese non-security issues were fixed:\n\n- bsc#1023895: Fixed man page to not contain invalid options and also prevent\n  warnings when using these options in certain settings\n- bsc#980486: Reset user in /var/log/tallylog because of the usage of pam_tally2\n","status":"published","published":"2017-11-08T07:50:15Z","modified":"2026-02-04T02:49:53.161057Z","updated_at":"2026-11-02T15:53:44.209561Z"},{"id":"USN-5254-1","title":"shadow vulnerabilities","description":"It was discovered that shadow incorrectly handled certain inputs.\nAn attacker could possibly use this issue to cause a crash or\nexpose sensitive information. This issue only affected\nUbuntu 14.04 ESM and Ubuntu 16.04 ESM. (CVE-2017-12424)\n\nIt was discovered that shadow incorrectly handled certain inputs.\nAn attacker could possibly use this issue to expose sensitive information.\n(CVE-2018-7169)\n","status":"published","published":"2022-01-27T14:29:40Z","modified":"2026-06-29T13:49:35.528888755Z","updated_at":"2026-11-02T16:58:15.683829Z"}]}}